New lift FST-2XTs, Manual

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Replacing FST-2s with FST-2XTs
Appendix
ManualforreplacingFST-2swithFST-2XTs 31
FST-2XTs 51 00 – Remarks
1. The scan control on the safety circuit
The neutral wire on the power supply side is connected to terminal A1:X15.6 (input) and is
connected to all optocouplers of the safety-circuit scan control. The neutral wire is fed back out
through the conductor path to terminal A1: X20.2 (output). All drive and brake contactors as well
as hydraulic valve coils must be provided with the neutral wire from terminal A1:X20.2. The end
of the safety circuit is at X20.1. The conductor paths of the safety-relevant circuits on the printed
circuit board have a distance from each other of at least 4 mm on the outer layers. Where not
technically possible, this is achieved by means of an additional air gap on the printed circuit
board. According to IEC 664-1, this corresponds to pollution degree 3.
Test instruction:
 Start the lift system, release terminal A1:X15.6 and pull out the neutral wire. CAUTION!
Use insulated screwdrivers, because this terminal is now electrically live.

All drive and brake contactors and valves must de-energize immediately.
 Switch the lift system to an unpowered state. – Reconnect the neutral wire to A1:X15.6.
2. Inspection control
Uncontrolled door movements are prevented, the car speed is max. 0.63m/s and the operational
end floors are not overtravelled.
3. Auxiliary mode control, here the car speed is max. 0.63m/s.
4. Safety circuit bypass control (if provided)

The safety circuit bypass control is available with and without relay sockets.

If two identically constructed zone switches are used, they must comply with the
requirements of EN81 part 1 and part 2 chapter F6.3.1.1 (vibration test).

Malfunctions lead to locking of the safety circuit, are detected by the controller and result in
a system shutdown.

A detailed functional and test description can be found on pages 2 and 3 of this document.

The installation and operating instructions of the control must be observed.
5. Runtime monitoring. All control types are equipped standard with runtime monitoring.
Test instruction:

After driving has started, the drive is to be brought to a standstill.
A hydraulically driven lift can be brought to a standstill, e.g., by disconnecting the UP or
DOWN valve.
A lift with traction drive can be brought to a standstill, e.g., by disconnecting the inverter
enable or similar. – A description of the procedure can be found in the operating manual of
the drive.

If the drive is brought to a forced stop and a drive command is pending, the controller is
brought to a standstill after the set time on the controller menu.

Rectify the simulated failure. The lift is started up again by switching the controller ON/OFF.
Page 1 of 3 Edition: 23.09.2014